San Francisco: Annual Weather Averages. July is the hottest month in San Francisco with an average temperature of 14Â°C (57Â°F) and the coldest is January at 10Â°C (50Â°F) with the most daily sunshine hours at 14 in July. The wettest month is January with an average of 119mm of rain.
Bile duct obstruction is a blockage in the tubes that carry bile from the liver to the gallbladder and small intestine. In serious cases, the common bile duct can be surgically moved so that it empties further down the small intestine.
Under normal circumstances, bile is made in the liver and stored in the gallbladder. When you eat a meal, bile passes from the gallbladder through the cystic duct and the common bile duct into the small intestine, where it mixes with partially digested food. Gallstones are the most common reason for biliary colic. If a gallstone blocks either of these ducts, the normal flow of bile into the intestine is disrupted. The muscle cells in the bile duct contract vigorously to try to move the stone, causing the pain of biliary colic.